Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 November 1962
Published in Agron J 54:523-525 (1962)
© 1962 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Varying Leaf Area by Partial Defoliation and Plant Density on Dry Matter Production in Corn1

Paul Hoyt and Richard Bradfield2

Synopsis: The net assimilation rate of corn was linear to leaf area index when this was less than 2.7 but declined rapidly when it was above that value. In a stand with a leaf area index of 3.3, dry matter produced per square meter of leaf area from grain initiation to maturity by the top, middle, and bottom leaves was of the ratio 4:2.2:1.

1 Contribution from the Agronomy Department, Cornell University, Ithaca, N. Y. Part of a thesis submitted by the senior author in partial fulfillment of the requirements for the M.S. degree.

2 Formerly Graduate Assistant (now Agronomist, Canada Experimental Farm, Beaverslodge, Alberta, Canada), and Professor of Soil Technology, Cornell University.

Received for publication February 13, 1962.


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H. Tewolde, K. R. Sistani, D. E. Rowe, A. Adeli, and T. Tsegaye
ESTIMATING COTTON LEAF AREA INDEX NONDESTRUCTIVELY WITH A LIGHT SENSOR
Agron. J., June 17, 2005; 97(4): 1158 - 1163.
[Abstract] [Full Text] [PDF]


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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
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Environmental Quality		 The Plant Genome
Copyright © 1962 by the American Society of Agronomy.